C#修改文件名(单个-一个文件夹下所有文件-插入方式)

private void bt_ModifyName_Click ( object sender , EventArgs e ) OpenFileDialog dlg = new OpenFileDialog ( ); dlg.AddExtension = false; dlg.Filter = (*.*)|*.*; if ( dlg.ShowDialog ( ) = DialogResult.OK ) try if ( cb_ModifyType.Checked )/ ModifyFileName ( dlg.FileName ); else / FileInfo fInfo=new FileInfo ( dlg.FileName ); string filename=Directory.GetFiles ( fInfo.Directory.ToString ( ) ); string fileCount = filename.Length.ToString ( ); if ( MessageBox.Show ( r +fileCount+ , , MessageBoxButtons.OKCancel , MessageBoxIcon.Warning ) = DialogResult.OK ) foreach ( string sFile in filename ) ModifyFileName ( sFile ); catch ( Exception ex ) WriteExceptionInfo ( ex ); / / / public string TakeFileName ( string filePath ) int iTmp =0; string sFile =; iTmp = filePath.LastIndexOf ( ); if ( filePath.IndexOf ( : ) != 1 ) /2 return sFile; if ( filePath.IndexOf ( ) != 2 ) /3 return sFile; sFile = filePath.Substring ( iTmp + 1 ); iTmp = sFile.LastIndexOf ( . ); sFile = sFile.Substring ( 0 , iTmp ); return sFile; / / / public string TakePostfix ( string fileName ) int iTmp =0; string sFile =; iTmp = fileName.LastIndexOf ( . ); if ( iTmp = 0 ) return sFile; sFile = fileName.Substring ( iTmp );/ return sFile; / / sFilePath= / public void ModifyFileName (string sFilePath) try string sName = TakeFileName ( sFilePath ); / string sPostfix = TakePostfix ( sFilePath );/ string sNewFileName =;/ if ( cb_Insert.Checked )/ sNewFileName = tb_FileName.Text.Trim ( ); else / if ( ( int ) nud_InsertPlace.Value sName.Length ) sNewFileName = sName + tb_FileName.Text.Trim ( ); else sNewFileName = sName.Insert ( ( int ) nud_InsertPlace.Value , tb_FileName.Text.Trim ( ) ); FileInfo fInfo=new FileInfo ( sFilePath ); string sFileName = fInfo.Directory + + sNewFileName + sPostfix; System.IO.File.Move ( sFilePath ,